Ice-making machine



une 28, E921 M REB! ICE MAKING MACHINE 4, 1925 3 Sheets-Sheet 1 Filed Sept.l l

une 28, 11927. M man Ion MAKING MAcHINE '5 vsheets-sheet 2 wie@ sept. 14, l1.925

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M. RUSH GE MAKING MACHINE june 289 M2?, 393397K?,

Filed Sept. 14. 1.925 5 Sheets-Shw AssIenon ro cArHAnmA nml, or on..

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m o MACHINE.

Application med September 14, 1985, Serial No.

My invention has reference to improvements in loe-making machines and relates more particularly to machmes for` use 1n confectionersl shops, hotels, boarding houses,

larve households and the like.

@ne obiect of my invention is to provide a machine producing solid block ice, used.

for ordinary cooling urposes, as Well as broken ice or ice in ne particles such as used fonico-cream aching, etc.

Another object cip vide a machine producing ice wlth ygreat rine. l

invention will be best unde we? when descrid' in connection with the no ra idi in witth b ccmpanying drawings in which Figi is a central vertical longitudinal section of the machine,l Fig. 2 is a section on line oof Fig. 1 Fig. 3 is a longitudinal section through the refrigerant. distributing device,

F d a cross section of the same, Fi 5 is.

gmentary end elevation of the refrigerant distributing device, Fig. 6 is a longitudinel section ot a modication, Fig. 7 is a scction on line ll-l ci Fig. 6 and Fig. 8 is a sec tion on line llF-lll et Fig. 6. v

vAccording to the invention, the machine comprises a hollow cylinder 1,'in4 which a second cylinder 2 is placed in such a Way, as to io, together with the cylinder 1 an expansion space or chamber 3, hag the section oi c rin lo this space 8a plpe t leeds, serving :tor the introduction oi the" cooling medium or refrigerant, such ves sonia, snl hurous acid etc. Jfor evaporation. A. con uit 5 leads out from the space 3 qlor the discharge of the gases. The two conduits d `,and 5 pass to a distributing de# vice, in a housin Gk fixed to the cylinder l by means of a s eeve M and containin tvvo two-Way cocks 6 and 7 (llgs. 8

ande ci `@durch coch 6 serves for the and coch 7 tor the outlet of the refrigerant.

By means of a lever-system, consisting ot the levers 8, 9, l0 and the link9" (Figs. t and 5) the coche 6 and 7 can be turned through an arc oi 90 from the-open'position'shovvn in Fig. l to the' closed position shown in Fig. 3. I"lhe positionshown in Fig.

e is the inlet position for the refrigerant' supplied to coclr t in liquid form .from the condenser (not shown). 1 The cock 6 leprovided with `a nozzle 1l serving/for the atomci the refrigerant. before its entrancel my invention is 'to pro-- as compared with machines eorl'z-v,

56,854, and` in Switzerland September W, l

in the expansion chamber ,.3 through the condu1ts 4', 4. The outletcock 7 is also provided vvith a nozzle 13 serving to atomize any liquid particles of refrigerant on its passage 'to the condenser from the chamber 3. The

described distributing device is fastened to the column 14 by means of a support 14e.

^ Surrounding the cylinder 1 is a casing 15 lled with water, and-held in 'place by a rin 18fastened to the column 1d by means o projecting lugs 16, 17, enterin the notches vof a (not shown) bayonet-loc This caslng maybe enclosed, if desired, by a jacket 15 betweenwhich and the casing 15 a lling of msulatingmaterial may be placed.

' The column 14 carries a bracket 20 to Y beve gear 23 is housedin ay cavity in the underside of head 2l and is driven b means of the bevel gear Wheel 26 actuate by the pulleys 27 and 28.

-According to the modification (Figs. 6-8 the conduits d and 5` leadto a housing connected to the hollow cylinder 1 by dan es F, F and provided with inlet and out et lpassages 29, 'connecting respectively conduits el and 5, which housing 1sl provided with a stungbox for passa e of the stem of a shutfodvalve 32 where y the circulation of the refrigerant may be out o when desired.

The agitator or propeller in this tion consists ci twolsaW-shaped blades carried b arms 33 and gli, each blade having a straig t edge and a toothed ed e, the latter presenting alternating lll-shape projections 35 and recesses 36. The blades are so disposed that in their rotation the straight edge of one blade contacts with the outer surface of the cylinder 1, Whilethe straight edge ci the other blade contacts with the inner surface and the jacket l5. 'lhe toothed edges of, the two blades thus project radially inward-and outward with respect to cyllnder 1 and the blades traverse concentric rotary l between the cylinder and jacket so as to agitate the body of Water throughout its crosssectional area. The-projections. 35 and re Y cesses 36 ci the two blades are equally spaced lt@ but staggered with relation to eachother, the

be kept finely divided into small particles,v

in which condition it is highly suitable for use in packing ice cream and for other simiv lar purposes.

The working of the described machine for producing solid ice, in which operation the agitator or paddle is not used, is as follows:

After the mantle 15 previously filled with water, is placed over t e hollow cylinder 1, the cocks 6 and 7 are set in the position allowing the refrigerant to flow from the condenser through the cock 6. The refrigerant then enters the chamber 3 by Way of the pipe 4 in which chamber 1t eva rates. Through this evaporation heat is'wit drawn from the hollow cylinder 1 and therefore from the water surrounding it, which causes an immediate formation of ice. The form of the ice-block is a hollow cylinder which is easily removable upon the disconnectlon of the cylinder 1 from ring 18.

The production of ice-cream ice, 1. e., broken ice or ice in small particles for ice cream packing, etc., is performed in any identical manner with the only difference that the agitator' or propeller is emplo ed to keep the water in motion ezing action.

What I claim is: v

1." In an ice making machlne, an upright during the support, a pair of superposed horizontal l 4ce.

supporting members carried by said upright support, a valve casing mounted upon the upright support above the upper horizontal supporting member, an outer receptacle detachably' suspended from the lower.

horizontal supporting member, a air of cylinders disposed one within the ot er and forming an e ansion chamber between them, said cylin er being arranged with the receptacle so as to form a freezing chamber between the receptacleand the inner cylinder, suspending means for said, cylinders extending upwardly'through the upper Ahori-.

zontal supporting member. and fastened to the valve said suspending means being provided with refrigerant ilow passages connecting said valve casing and ex anslon chamber, and valve means in the va ve casing for controlling the flow of the refrigerant. Y

2. In an ice making machine. an upright support, a pair of superposed horizontal supporting members carried' by said upright support, a valve casing mounted upon the upright support above the upper horif zontal supporting member, an outer recep- 5 tacle detachahly suspended from the lower means horizontal supporting member, af vair of cylinders disposed one wlthin the ot erand .forming an` expansion chamber between them, said cylinders being arranged with thekreceptacle so as to form a freezlng chamber between the receptacle' and the inner :cylinder, suspending means forsaid cylinders extending upwardly through the upper hori- 'zontal supporting member and fastened to the valve casing, said suspending means being provided with refrigerant iow passages connecting said valve casing and expansion chamber, valve means in the valve casing for controlling the `flow of the refrigerant, a rotary agitator for agitating the liquid to be frozen 1n the freezing chamber, a rotary gear element mounted on thev upper horizontal supporting member for transmitting motion to said agitator, and drive gearing on the upright support for driving said gear element.

3. In an ice making machine, an inner expansion chamber for'the expansion of a rerigerant therein, an outer freezing chamber concentric therewith, and a rotary agitator in the freezing chamber vcom rising blades rotating on opposite sides of t e cen- Y ter of `said refri erating chamber, said blades havin relatively outer straight edges support, a valve casing mounted upon the ,upright support above the upper horizontal supporting member, an outer receptacle detachably suspended from the lower horizontal supporting member, a pair of cylinders disposed one within the other and forming an expansion chamber betweenl them, said cylinders being arranged with the receptacle so as to form a freezing chamber between.

the receptacle and the inner cylinder, suspending means for said cylinders extending upwardly through the upper .horizontal sup-l porting member. and fastened to the valve casing, said' su nding means being provided with refrigerant flow passages connecting said valve casing and 'refrigeatingchamber, said blades having relatively outer straight 'edges andrelatively .inner toothed edges, the straight edges of the blades rotating in contact wlth the inner and outer walls of the freezing chamber and expansion v chamber, valve means 1n the valve casing for los the toothed edges of the blades having their projections and recesses staggered with relation to each other.

5. In an ice making-machine. an upright support. a pair of superposed horizontal supporting members carried by said upright support, a. valve casing mounted upon the l 20 the valve casing,

uprlght support above the upper horizontal supporting member. an outer receptacle de'- tachably suspended from the lower horizontal supporting member, a pair of cylinders disposed one Within the other and formin an expansion chamber between them, said cylinders being arranged with the receptacle so as to form a. freezing chamber between the receptacle and the inner cylin-- der, suspending means lfor said cylinders extending upwardly through the upper horizontal supporting member and fastened to said suspending means beconnecting said valve casing and expansion chamber, valve means in the valve casing ing provided with refrigerant flow passages for controllingthe flow of the refrigerant, a

rotary' gear elementon the up er horizontal supporting member, drive mec anism on the upright support for rotating said gear element` and a rotary agitator in the freezing chamber driven by said gear element and comprising blades rotating on opposite sides of the centerof said refrigerating chamber, said blades having relatively outer straight edges and relatively inner toothed edges,

Athe straight edges of the blades rotating 1n contact with the inner and outer Walls of the freezing chamber and the toothed edges of the blades having their projections and recesses staggered with relation to each other.

MAX RIBI. 

